Jan
Jan AI (Homecloud)
FreeOpen WebUI
Open WebUI (Timothy Jaeryang Baek)
FreeJan vs Open WebUI: Full Comparison (2026)
Jan is open-source chatgpt alternative that runs 100% offline on your desktop. Open WebUI is the most popular open-source web ui for ollama and openai-compatible models. Use the breakdown below to find the right fit for your needs.
This page presents factual information sourced from publicly available vendor documentation and product pages. AIHub does not endorse either product. The right tool depends on your specific use case, team, and requirements — we recommend evaluating both tools directly before making a decision.
Side-by-Side Overview
Pricing Model
Jan
FreeOpen WebUI
FreeAPI Access
Jan
AvailableOpen WebUI
AvailablePlatforms
Jan
macOS (Apple Silicon & Intel), Windows, LinuxOpen WebUI
Web (self-hosted), Docker, Kubernetes, Raspberry PiIntegrations
Jan
5 integrationsOpen WebUI
7 integrationsVendor
Jan
Jan AI (Homecloud)Open WebUI
Open WebUI (Timothy Jaeryang Baek)Category
Jan
Developer ToolsOpen WebUI
Developer ToolsLaunch
Jan
2023Open WebUI
Dec 2023Models
Jan
Llama 3.3 70B, Mistral 7BOpen WebUI
Any Ollama model (Llama, Mistral, Qwen, Gemma, etc.), OpenAI API| Feature | Jan | Open WebUI |
|---|---|---|
| Pricing Model | Free | Free |
| API Access | Available | Available |
| Platforms | macOS (Apple Silicon & Intel), Windows, Linux | Web (self-hosted), Docker, Kubernetes, Raspberry Pi |
| Integrations | 5 integrations | 7 integrations |
| Vendor | Jan AI (Homecloud) | Open WebUI (Timothy Jaeryang Baek) |
| Category | Developer Tools | Developer Tools |
| Launch | 2023 | Dec 2023 |
| Models | Llama 3.3 70B, Mistral 7B | Any Ollama model (Llama, Mistral, Qwen, Gemma, etc.), OpenAI API |
About Jan
Jan is an open-source desktop application that runs large language models entirely locally on your Mac, Windows, or Linux machine — no cloud, no API key, no data leaving your device. It provides a polished ChatGPT-like chat interface, a built-in model hub for one-click downloads (GGUF models from Hugging Face), a local OpenAI-compatible server, and supports GPU acceleration via NVIDIA CUDA, Apple Metal, and AMD ROCm.
Designed For
- Fully private local AI chat
- Offline coding assistant
- Air-gapped enterprise AI
- Local OpenAI API server
About Open WebUI
Open WebUI (formerly Ollama WebUI) is an extensible, self-hosted web interface for running large language models locally through Ollama or any OpenAI-compatible API. It provides a feature-rich chat experience with conversation history, model management, RAG (document upload), web search, image generation, and voice input — all in a polished interface that rivals ChatGPT. With 50K+ GitHub stars it is the most widely adopted local AI front-end.
Designed For
- Local AI chat interface
- Self-hosted ChatGPT replacement
- RAG over personal documents
- Team AI deployment
Strengths & Limitations
Jan
Strengths
- 100% local — zero data leaves device
- Polished UI comparable to ChatGPT
- Built-in model hub (one-click downloads)
- OpenAI-compatible API server built-in
- Multi-GPU and Apple Metal support
- MIT-licensed open-source
Limitations
- Requires capable local hardware (RAM/VRAM)
- Fewer integrations than LM Studio
- Smaller ecosystem vs Ollama
- No cloud fallback
Open WebUI
Strengths
- Polished ChatGPT-like UI
- Native Ollama integration
- Built-in RAG and document upload
- Voice input/output
- Multi-user with admin controls
- Highly extensible with plugins
Limitations
- Self-hosting required (Docker)
- Some advanced features need setup
- Resource-heavy with many users
Frequently Asked Questions
What is the difference between Jan and Open WebUI?
Jan is open-source chatgpt alternative that runs 100% offline on your desktop, while Open WebUI is the most popular open-source web ui for ollama and openai-compatible models. Jan is designed for Privacy-first developers, Offline/air-gapped environments; Open WebUI is designed for Developers running Ollama, Teams wanting self-hosted ChatGPT. The right fit depends on your specific requirements.
How do the pricing models compare?
Jan is available under a Free model. Open WebUI is available under a Free model. Jan's entry tier starts at $0. Open WebUI's entry tier starts at $0. Always verify pricing on each vendor's official website as it may change.
What integrations does each tool support?
Jan integrates with Hugging Face (model hub), OpenAI SDK (compatible server), LangChain, Open WebUI. Open WebUI integrates with Ollama, OpenAI API, LiteLLM, Pipelines (custom functions). Check each vendor's documentation for the full and current list.
How do I choose between Jan and Open WebUI?
Consider your team's technical requirements, budget, existing tooling, and use case before deciding. We recommend signing up for free trials or demos of both tools where available, and consulting each vendor's documentation. AIHub provides this comparison for informational purposes only.
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Data sourced from public vendor documentation. Pricing, features, and availability may change. Always verify on official vendor websites before making purchasing decisions. AIHub is not affiliated with any of the listed vendors.